16487728 has 20 divisors (see below), whose sum is σ = 32095168. Its totient is φ = 8205120.

The previous prime is 16487683. The next prime is 16487749. The reversal of 16487728 is 82778461.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258 + ... + 5878.

Almost surely, 2^16487728 is an apocalyptic number.

It is an amenable number.

16487728 is a deficient number, since it is larger than the sum of its proper divisors (15607440).

16487728 is a wasteful number, since it uses less digits than its factorization.

16487728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4852 (or 4846 counting only the distinct ones).

The product of its digits is 150528, while the sum is 43.

The square root of 16487728 is about 4060.5083425601. The cubic root of 16487728 is about 254.5190370234.

The spelling of 16487728 in words is "sixteen million, four hundred eighty-seven thousand, seven hundred twenty-eight".